Trick or Treat is an exchange in the style of exchanges like Yuletide or
Purim Gifts. It is inspired by a real world holiday. You do not need to
celebrate Halloween to participate in this exchange. Each person will
receive at least one gift. The gift will be a trick or a treat. A trick
should be more horror, occult, supernatural, or scary. A treat should be
more sweet, sexy, or fluffy. These are a bit vague to give the
writer/artist room for how they interpret trick or treat.